def sum_2_num(num1, num2):
    """
    求两个数字的和


    """
    result = num1 + num2
    return result


a = sum_2_num(20, 32)
print(a)

#  用lambda来实现： 简单高效
p = lambda num1, num2: num1 + num2
print(p(20, 32))
